There are two releases of Ardbeg Perpetuum; the 49.2% distillery release (DR) and the 47.4% general release (GR). The DR was released in March 2015 and the GR in May 2015. I got the opportunity to compare the two at Ballygrant Inn on Islay some days ago. Are there any differences except for the strength? How is Perpetuum compared to Arbeg 10Y? I find the GR more mature than the DR. The difference can not be explained by the strength alone. A rescue operation going on between the release of DR and GR? I find both to be immature versions of the 10Y. I find no reason to buy the Perpetuum unless you are a fan of the Ardbeg new make. Personally I prefer a more mature version of the Ardbeg, so I dropped buying the DR when I visited the distillery for lunch. Should I buy a Perpetuum, I would keep to the GR. But the quality is far from earlier special releases like Alligator, Galileo and Ardbog. A sign of running low on mature whisky, forcing the release of substandard NAS?